Re: Debian can not boot from RAID-1
On Thu, 26 Nov 2009, Johnathan Thibodeau wrote:
My experience has mostly been with software RAID, where in the case of RAID1
the kernel and initrd are just loaded off of one of the drives, basically
ignoring the fact that it has a mirrored twin elsewhere...
But I'll try to be helpful :)
Yuriy Kuznetsov wrote:
Dell Power Edge 2970; 6X3" HDDs: 2-RAID1, 4-RAID5
Installed latest Debian on RAID1, which is VD-00. Installation went through
without any issue.
After installation system can not boot. Checked BIOS and there are only 3
options to boot from: CD-ROM, NIC, Drive C(I'm not sure where drive C came
My guess is that the label 'drive C' is just your BIOS trying to be Windows
friendly, and offering a cutesy name instead of a more generic one such as
'hard drive'. Shouldn't be a cause for concern.
In the RAID configuration utility VD-00(2 HDD in RAID1)is set as boot
device but it's still can not see the boot sector.
Is it something wrong with the system or did I need to set some settings on
I think your BIOS is trying to boot directly from a hard drive, instead of
using the RAID device presented to it by your RAID controller. In your BIOS,
try searching for an option along the lines of 'hard drive order', 'hard
drive priority', or maybe something more generic like 'device order'. Most
BIOSes work along the principal of having two settings, one to select the
type of device to boot from (which is the CD-ROM/NIC/Drive option you
mentioned above), and a second option to select the order in which to try the
devices of a particular kind.
Either way, the option to control which drive to boot from should not be very
far away from the option you found to select the type of boot device. When
you find it, you should see your hard drives listed along side your two RAID
arrays. Simply select the proper RAID array.
Any help would be much appreciated.
Hope this helps.
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You can also boot a Linux Live CD (or system rescue CD) or knoppix and
fdisk -l - make sure you have a bootable partition and its the same one on
each of the raid-1 disk members.